Ubuntu :: Reduce Memory Usage / Footprint In 10.04?
May 15, 2010
I like a lot of the last Ubuntu editions, but my computer is a little old, and Ubuntu becomes slower each edition to me.
I get a AMD Athlon 2 GHz, with just 512 MB of RAM memory...
I tried to customize my last installation of 9.10, but i just mess up with the OS. Well, I googled for informations about reducing memory usage, as well others speed-ups but all them are a bit older. Does anyone know any resource about this?
Until now I just disabled startups programs, but i really want is remove packages and everything that I don't use.
One thing thats get me up set sometimes is that I run Win XP pro under a cryptographed partition, and even yet its very fast in my PC. I even tried Windows 7, and its was faster than the Ubuntus I installed.
When I'm using the 10.04, there is a lot of memory used by cache, specially Gnome...
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Apr 13, 2010
Just wondering if anyone has been successful at reducing the memory footprint of ubu 9.04. I have googled and read a number of "suggestion" but when applied had little or no effect on memory usage. So, after a complete new install, I am here asking this question. It is not a biggie but I am always looking for ways to reduce memory usage without sacrificing functionality.
I try to help others who would like to try and or convert to linux but often their systems have minimal memory and they don't or can't purchase more memory. So, being able to install ubuntu with a smaller memory footprint would be a good thing.
A basic ubuntu 9.04 seems to use about 300 Mb and for many that is too much. Hence, my quest for a smaller memory requirement. I have tried the ubuntu minimal cd's but they don't really achieve much in the memory area and they take so much longer to install since one uses the internet.
At any rate, if someone knows what services or programs that can be safely removed in order to achieve a better memory usage Oh, I have looked at numerous other distro's but seem to always return to ubuntu.
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Feb 11, 2010
I have a VPS running a web application served using Apache, that on average deals with 20-50 requests per second. It's usually above this point (50 requests per second) that the amount of memory that Apache uses is too high for the VPS and errors start occuring - web pages crash and VPS falls over for a minute or two before going back to normal levels.
I believe that MaxClients is the best way to reduce the amount of RAM that Apache uses and I am planning to reduce MaxClients from 256 (default value) to around 100. Each Apache process uses ~15MB and the server has 1900MB of ram in total - the server does nothing else other than run Apache and a few crons.
Current setting are:
Code:
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 3
# prefork MPM
# StartServers: number of server processes to start
[Code].....
I tried reducing MaxClients before which lead to massive slowness, so I need some other options as well.
Does my suggestion of reducing MaxClients to ~100 seems sensible? What are my options if the server experiences slowness again - optimise the application? What's the best way to reduce memory usage - move images to another web server?
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Nov 2, 2010
Wondering if i improve my memory footprint
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May 8, 2011
Unity has been slower since upgrading.
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Feb 23, 2010
OK I need a Linux OS that will have as small memory foot print as possible to host VMware. I thought about DSL or Puppy Linux but they aren't exactly know for running server class stuff.
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Mar 15, 2010
I was trying to get the status of memory usage and disk usage using sigar in windows and ubuntu. done this in windows by just copying the sigar library into jdk library. But i was unable to do so in ubuntu. I've copied the library to java-6-sun library but still can't run the program.
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Jul 11, 2010
I need to rip my DVDs, an operation which is heavy on the CPU, on my laptop. This makes the temperature rise very quickly, even if the process has very high nice value, and my laptop was already shut off automatically once. Probably there is some bug, since the temperature if often hotter than optimal, but this is really too much (plus these days my room is hot too).
I don't want to ruin anything, so I'd like to put some kind of limit on the CPU usage. Say I don't want any of the two CPUs to go over 70% (a moment ago they were both at 100%, I have paused the process). Is there a way ti d0 this?
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Mar 18, 2011
I have a computer with 16GB of ram. At the moment, top shows all the RAM is taken, (NOT by cache), but the RAM used by the various processes is very far from 16GB.I have seen this problem several times, but I don't understand what is happening.My only remedy so far has been to reboot the machine.
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Sep 2, 2009
I am running into a scenario where inode utilization (df -i)on a partition is 100% I want know
1) Is there a better way to list the total count of all files in a partition and just display total number of files in each directory in that partition I can get approx total for the entire partition by following commands
ls -Rla | wc -l
find -type f | wc -l
whereas ls -Rla gives too lengthy outptut with all the files in each directory
2) How to know inode utilization for each user or system account? There is huge number of files and how to remove it
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Apr 29, 2010
I want to set a limit on the available RAM in my Linux machine, it currently has 4GB of RAM, and in order to perform some experiments I need the system to recognize and use only 1GB. I don't want to limit the amount of memory to one particular process (like with ulimit), but to the whole system. The OS in Ubuntu 9.10. Somewhere a long time ago (for Fedora) I read about editing grub, so that at boot time the limit is set, it might be something along those lines, but not really sure.
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May 3, 2011
I am looking for free database that has low memory usage and innodb and memory like engins that has C API and support trigger and client/server support for using in embedded linux systems.
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Jul 21, 2011
Fedora15 32bit. I write a test program, it creates new thread continually, the thread does nothing but sleep. I find virtual memory increases up almost 10Mb when a new thread is created. and when there's more than 200 threads, the virtual memory used by the program is 3Gb, and now cann't create new thread. but on windows, it costs little memory. What can I do to config the operation system to take less memory on threads?
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Jan 13, 2009
I am sure that all of us know the result of top command in linux. i want to get the value that the top command return as CPU usage, memory usage. so how do i do(programming relation)?
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Aug 6, 2010
I've come across a really strange issue with one of my RHEL servers. The "free" command shows that 7019 MB of memory are actually in use by my system, but when summing up the actual usage (or even virtual usage like the example below) it doesn't add up - the sum is far less than what is reported by "free":
Code:
[root@server1 ~]# free -m
total used free shared buffers cached
Mem: 12011 7946 4065 0 4 23
-/+ buffers/cache: 7919 4092
[code]....
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Aug 14, 2010
I have an Acer Aspire netbook with 1GB RAM and 1.6 GHz dual-core 32-bit x86 chips. The KPackageKit / yum / rpm chain is running too slow for me. In addition to the time required to download any new packages or updates, it seems to require at least one full minute of processing time to install each package, update, or bug fix, no matter how small. Another full minute is consumed for each package in "cleaning up."Running yum from the command line takes nearly the same amount of time.During this time, I cannot run any other applications without severe thrashing. It seems that a full gigabyte of memory is in use with some 100M swapped out to disk.
Is there any way to reduce the running time and memory requirement of the update process?While not updating or installing software, I do not normally run out of memory (i.e. begin thrashing) until I have about a dozen browser tabs open, or the like.
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May 11, 2010
Is this normal? I check system monitor and the top most is xorg followed by compiz. When I first started with 10.04 few days ago it was around 300-500MB.
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Jul 11, 2010
My problem seems to be very simple, it's high memory usage. I occasionally will use movie player to watch a few shows and I use firefox as well. My memory usage starts out real small about 500 mb but after using firefox lightly and movie player it jumps to almost 2 gigs and this is after they've been closed what gives? I've attached an image so you can see what I'm talking about.
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Aug 16, 2010
I've been having some problems with Lucid; all my applications seem to be hogging memory like no tomorrow. Within about 15 minutes from booting the system, processes like Google Chrome, Nautilus, Python, Pidgin all start to take seemingly too large amounts of memory.
Chrome is the worst one, easily shooting over 200-300MB of my 2GB's of RAM. I would have reported this as a bug in Chrome itself, but my other applications seem to share the problem to some extent. Also: My colleague has identical hardware and identical versions of Ubuntu / Chrome, while he has no memory problems whatsoever.Currently I am running Chrome, Geany, Pidgin, Thunderbird and FileZilla. For this and itself, Ubuntu now consumes 1.8GB of RAM (that's including 500MB cached).
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Jun 27, 2011
If i download something using KTorrent or Transmission, my RAM Memory ( 2G GB ) is filling up and my PC dies slowly.
Only with saidar i can see this, if i use System Monitor, things look normal.
I'm using Ubuntu 10.10 and i'm also having this problem when i'm watching movies.
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Jan 11, 2009
i am wondering How to get usage of CPU, Memory in linux environment? So would you able to tell me the ways?
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Jun 2, 2010
I am having a few problems with a red hat box involving memory usage. I have 64Gb memory and 'top' tells me I'm using 60Gb of it, but if I add up all the '%MEM' figures I get no more than 20%. Where is the other 80% ?
We have an ORACLE instance that is using shared memory but this is ceilinged at 45Gb. That means there is about 15Gb unnaccounted for . What utilities can I use on red hat to ascertain memory usage other than 'top' ? Any better ones, more detailed, looking at shared memory etc and swap ?
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Jan 17, 2010
Is there a way I can start a program and then record a log of how much memory it's using at a specific interval until the program ends?
I've tried writing a shell script but get the error: ./apps/mem-test.sh: line 4: [: too many arguments
Here's the non-working script:
Code:
$HOME/apps/ImageMagick/bin/convert -limit memory 64 -limit map 128 $HOME/SSI/davidkennardphotography/Img-Orig/95-Pole-Bank.jpg -set option:filter:filter Lanczos -set option:filter:blur 0.8 -resize 1024x720 $HOME/resizedImage.jpg &
GOODY="ps -p $! -o pid,%cpu,rss,cmd | grep convert >>test.txt"
[Code]....
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Mar 25, 2011
I have added the cpu usage monitor in the taskbar in lubuntu 10.10. However did not find any application for memory usage. Where can I find that?
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Sep 17, 2009
I'm trying to understand the performance of my machine and memory usage just isn't adding up. When I run top it will typically show 301M of 308M used but the total of everything in the RES column is no where near 300M and the total of %MEM column isn't more than 20-30%. So how do I figure out what is using all the memory? Then is there some way to control it to optimize performance?
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Apr 13, 2011
Under SuSE, (Mem: 31908592k total, 31421504k used,) how do i know which process or program using my memory?
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Apr 15, 2011
I am a bit worried about my linux vserver box. No more memory is left. To investigate this issue, i was looking at "top". But it deeply confuses me. It seems that no more memory is left, altough the process list in top never adds up to 100%
[Code]...
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Feb 18, 2010
Memory of my Linux database servce is all used up. I first noted that this morning and rebooted the box. 5 hours later, it saw used up again. I want to find out which process is responsible for using most of the memories. What Redhat Linux utility can list processes sorting by their memory usage, like the Windows task manager?free and vmstat - summary but not for each processtop appears to be infomative, but sum of non-zero %MEM never add upp to 100
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Mar 31, 2010
Maximize Linux Memory usage
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Jul 15, 2010
I wanted to know the best way to monitor memory usage, us space and processes and receive an email if a problem occurs?
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